Social networks within organizations serve to channel valuable resources and thereby influence individual attainment, as measured by performance ratings (Sparrowe et al. 2001), promotions (Podolny and Baron 1997), and rewards (Burt 1992). The flow of resources through social networks becomes especially important to individual outcomes during periods of transformative change such as a restructuring (Srivastava forthcoming), merger (Allatta and Singh 2011), or major technological shift (Burkhardt and Brass 1990). These episodes often produce high levels of uncertainty about how people’s job roles and the resources they hold will change (Ashford 1988). Uncertainty in turn triggers the search for social resources, such as information, influence, and social support, from network contacts (Mizruchi and Stearns 2001).